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Notes on healthcare AI, embedded systems, machine learning, graph data, and the engineering behind them.

August 3, 2026

What an AI Audit Actually Finds

Most teams asking for AI don't have a model problem. They have a "which problem is even worth it" problem. Here's what a real AI audit surfaces — and why "don't build this" is often the most valuable line in the report.

EngineeringRead more →

June 12, 2026

Inside a Production Voice Agent: How the Stack Actually Ships

Production voice-AI has converged on a pattern: graph-based conversations, separated decision and response prompts, synthetic-call regression testing, and per-component latency budgets. Why the stack looks the way it does — and what most teams are still missing.

ProductRead more →

June 1, 2026

Prompt Engineering Didn't Die. It Got Unrolled.

Everyone keeps announcing the death of prompt engineering. They are describing the symptom, not the shift. The loops you used to run by hand — refine, retry, verify, learn — moved out of your head and into infrastructure. Four of them, simultaneously.

EngineeringRead more →

May 16, 2026

The Two Rhythms of B2B Tech: What Palantir Gets Right That Most Companies Get Wrong

Palantir built a company on the idea that software alone isn't enough: you need engineers embedded with customers. That model has a name, a cost, and a hidden technical debt time bomb most B2B companies are quietly sitting on.

EngineeringRead more →

May 8, 2026

Healthcare AI Will Be Won by Verticals. The Recipe Has Been Around for a Decade.

Most healthcare AI companies are failing for the same reason. The ones winning are running the same playbook: one Palantir figured out before anyone called it AI. Forward-deployed engineer. Ontology. Integrations. Then AI tooling.

HealthcareRead more →

May 7, 2026

Penpal: Dispatch Tool Today, RPG Interface Tomorrow

I built a tool that turns GitHub issues into pull requests using a three-agent pipeline. That's the boring part. The interesting part is what happens when you stop thinking about AI agents as productivity tools and start thinking about them as a workforce, and build a world for them to live in.

ProductRead more →

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Mostly about building products, healthcare tech, and lessons learned along the way.

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Articles

What an AI Audit Actually Finds

Inside a Production Voice Agent: How the Stack Actually Ships

Prompt Engineering Didn't Die. It Got Unrolled.

The Two Rhythms of B2B Tech: What Palantir Gets Right That Most Companies Get Wrong

Healthcare AI Will Be Won by Verticals. The Recipe Has Been Around for a Decade.

Penpal: Dispatch Tool Today, RPG Interface Tomorrow

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Clint Johnson

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Articles

What an AI Audit Actually Finds

Inside a Production Voice Agent: How the Stack Actually Ships

Prompt Engineering Didn't Die. It Got Unrolled.

The Two Rhythms of B2B Tech: What Palantir Gets Right That Most Companies Get Wrong

Healthcare AI Will Be Won by Verticals. The Recipe Has Been Around for a Decade.

Penpal: Dispatch Tool Today, RPG Interface Tomorrow